Rust

CSV Column Names

See more CSV Examples

Demonstrates how to access CSV column names.

The Chilkat CSV library/component/class is freeware. The downloads for .NET, C++, Perl, Java, Ruby, and Python contain all of the Chilkat classes, some of which are freeware and some of which require licensing.

Rust

// This example program loads a file (sample.csv)
// that contains this content:
// 
// year,color,country,food
// 2001,red,France,cheese
// 2005,blue,"United States",hamburger
// 2008,green,Italy,pasta
// 1998,orange,Japan,sushi
// 
// The first row contains the column names.
// This file is available at:
// http://www.chilkatsoft.com/testData/sample.csv

let csv = chilkat::Csv::new();

// Prior to loading the CSV file, indicate that the 1st row
// should be treated as column names:
csv.set_has_column_names(true);

// Load the CSV records from the file:

if csv.load_file("sample.csv").is_err() {
    println!("{}", csv.last_error_text());
    return;
}

// Display the column names:
let mut col_name = String::new();
let mut idx: i32 = 0;
for i in 0..csv.num_columns() {
    col_name = csv.get_column_name(i).unwrap_or_default();
    println!("{}: {}", i, col_name);

    // The following line demonstrates to to get the column
    // index given a column name:
    idx = csv.get_index(&col_name);
    println!("{} is at column index {}", col_name, idx);
}